Is Twitter or Facebook More Human?

"The differences between Twitter and Facebook mirror a longstanding debate about how the human brain processes other people." The Frontal Cortex explains.

"Do we assess others based on similarity, on their devotion to the same political beliefs, TV shows and sports teams [Twitter]? Or do we focus instead on their closeness to us, on whether or not they’re a sibling or a third cousin or a distant friend [Facebook]? This might seem like a minor mystery, but it has some major implications for social cognition. Are we clannish creatures, obsessed with bloodlines and kinship? Or are we more interested in finding a group that shares our peculiar passions and opinions?" Jonah Lehrer at The Frontal Cortex says our primate past causes us to be a rather clannish species.